i have Totcmd 9.12 64 bit on windows 10 home 64 bit.
i have plugin MediaInfoWdx version 1.09 working OK.

trying to install version 1.11 - i got:
"error loading plugin file! - The plugin probably needs some DLLs missing on your system".
I downloaded and placed MediaInfo64.dll as describe in the read_me file. it did not help.

Coincidentally I checked for plugin updates a couple of days ago, and MediaInfoWDX was one of them. I wondered why the size of the plugin files decreased drastically, so I checked and saw that the plugin is no longer statically linked but dynamically now. Unfortunately this is not mentioned in the plugin's changelog; god, I hate when authors don't mention such an important change .

Dynamically linked means that it requires external libraries that were integrated up until now. To solve this problem you need to install these missing libraries, in this case Visual C++ runtime 2015 or 2017.